Should I Be Concerned About Secondhand Vaping? Secondhand Vape Exposure: Effects, Who's at Risk, and More Is Vaping Worse Than Smoking? St. Vincent's Medical Center Vaping May Be More Dangerous Than Cigarette Smoking, Studies Show University Hospitals Tobacco Smoke, Vaping, and Asthma AAFA.org According to the American Heart Association, the risks of secondhand smoke from vapes are still being discovered. Learn about the dangers of secondhand smoke from vapes.